Apparatus for cleaning and drying grain.



IVI. BORISLAVSKY.. APPARATUSy FORYCLEANING AND DRYING GRAIN.

APPLICATION FILED SEPT. 5. 1913.

gwo Patented May 8,1917.

2 SHEETS-SHEET l.

M. BORISLAVSKY.

Patented May 8, 1917.

2 SHEETS-SHEET 2.

retenant. nonrsrnvsr l .errenarus ron ernannte .ann parme. cnam.

Specification of Letters PatentA l or ramen, aussie.

.applieanon mea september 5,1m. serial no. 783,267.

To all 'whom t may concern.'

Be it known that l, MICHAE;J BonIsLAv- SKY, a subject of the Czar of Russia, and residing at Minsk, in the Empire ofv Russia,- have invented certain new anduseful-llmprovements in Apparatus forv Cleaning and Drying Grain, of which the following l1s a specification. j

My invention has for its object to prepare .grain before it is finally operated on, that is to say to dry and clean it, and to do the former without regard to weather conditions, the weather often spoiling large quantities of grain, and also in such a manner as not to injure the quality ofthe grain. This object l attain by regulating'l the temperature of the air used for drying the grain by the' use of a special regulating chamber.

My new apparatus is shown in the drawings, where Figure 1 shows diagrammatically the general arrangement of the apparatus, and Fig. 2 the construction of the grain cleaner in a sectional view.

According to my invention a series of heat accumulators is fitted, forinstance: a, for high temperature, b for medium andc for low temperature; Pipes lead from these accumulators tothe regulating chamber C, to which a pipe d for the admission of fresh air is also connected. By adjusting the valves in these various pipes it is possible to produce in the regulating chamber C the temperature, best adapted to each case, of air, which is drawn from the chamber C by the fan B. llfv it is necessary to kill parasites in the grain, an air temperas` ture of about 150o is required, whereas for cooling the grain cooler air is used and for simply winnowing it, the pipe d' alone is opened. lThe fan B forces the air prepared in the regulating chamber through the grain cleaning machine A, which is constructed as follows: j

lnthe casing lis tted a set of inclined sieves 2 one above the other, the upper ends of which slide in the guides 5, while the lower ends are given 'an oscillating motion by eccentrically journaled rollers 3, which can be made to revolve in any desired way, the lower ends of the sieves being connected by an elastic air-tight wall 4, with an incline 7 adapted to the next lower sieve 2.

"llhus between each sieve 2 and its incline 7 is formed an inclosed space, whence the air is drawn through an opening 13 into a ltemperature "of the air.,

Patented May e, tera;

pipe 14:, for which'purpose a fan 16 is conu the withdrawn air being nected to said pipe,

a pipe 17.- With the discharged through pipe 14: is connected a dustvcollector. 15..

Where the grain enters the casing 1, above the top sieve, for distributing 1s provided a pair of rollers 9 Y,

the grain uniformly, and in f front of themA is a .guide plate 20 below` thev funnel-shaped feed inlet 8. The pipe -18 leading from the fan B (Fig. 1) enters the casing 1 from underneath. At the` Side, along the wallof the casing 1, is arranged a Vertical conveyer,

comprising two rotatable shafts 10 an endless'chain 11 passing.

over them, and carrying .buckets 12. rllhe conveyer, rollers 3, can derive its motion from` any convenient. source of power. To prevent the grain from 'rolling down the sieves 2 at too great a velocity, in rows on the sieves. For cleaning tween the sieves 2 and the incline Z cocks 19 in the lower part ofsaid spaces are prolike the crank for revolving the bars 6 are provided (by blowing anthrough) the inclosed spaces be# vided. The sieves 2 are so selected as to j suit the size of the grain to be cleaned, so

that the grain cannot pass through the mesh of the sieve.` rlhe whole apparatus works las folows': r1`hrough the inlet 8v the grain toY e dried and cleaned is `fed linto the grain cleaning machine A, and after having passed between the rollers 9, it drops onto the firstv sieve and goes on gradually reaching the bottom sieve, whence the buckets of the conveyer, lift it again-to the top. During allY this time the grain is met by a the yrequired fan B through the `pipe 18, which air-.1n

j stream of air at temperature supplied 'by the rising -is gradually drawn through the sieves 2 and 'together with the dust through the@jepening,` 13 enters the pipe 14', throughv whichth'e dust, etc. is carried of to the dustcoll'ector 15 whereas the' air by the fan 16 may 'be discharged into a furnace.

entering the niachine A, is'regulated, as already explained, by being led into the regulating chamber C, accordingto. the temperature required from'either. the accumulator a, b or c. Th at first very hot air may be used inthe niachine A to kill the parasites andl to dry the grain, then cooler air to cool the'grain and na'lly after the grain has been suiiciently dried, ordinary air may enter y the regulator C through the'pipe d.

The

I claim as my invention.

1. Apparatus for cleaning and drying grain, comprising a casing, a plurality of movable sieves arranged therein so as to continuously conduct the grain through the casing, partitions flexibly connected to said sieves to form therewith separate closed compartments, each having an outlet opening, a common conduit connected to said outlet openings, a suction pump in said conduit, an air chamber, a plurality of apparatus for supplying to said chamber air at various temperatures, means for controlling i the supply of air from each of vsaid appacontinuously conduct the grain through the casing, partitions ilexibly connected to said sieves to form therewith separate closed compartments each having an outlet opening, a common conduit connected to said outlet openings, a suction pump in said conduit, an air chamber, a plurality of apparatus for supplying to saidair chamber air at various temperatures, means for controlling the supply of -air from each of said apparatus, means connecting said air chamber with said casing, a fan in said connecting means for forcing the air from said chamber through said casing, and a dust collector connected to said conduit.

In testimony whereof I aiiix my signature in presence of two witnesses.

COLONEL MICHAEL BORISLAVSKY. Witnesses:

0. P. STURK, AUG UIGHIS. 

